下列（ ）方法不是在Collection接口中定义的。 A: iterator () B: isEmpty() C: toArray() D: ength()

The police think the fire was started ___________.( ) A: glimpse B: presence C: on urpose D: at ength E: agony F: radical G: affirm

Tom’s excellent exam results _____________ the teacher’s faith in his ability.( ) A: on urpose B: at ength C: radical D: affirm E: presence F: agony G: glimpse

I twisted my ankle three days ago, but I’m still in _______.( ) A: at ength B: radical C: affirm D: agony E: presence F: glimpse G: on urpose